grinned; grinning
: to draw back the lips so as to show the teeth especially in amusement or laughter
grinner
noun
plural grins
: a facial expression produced by grinning especially in pleasure or amusement
a happy grin
She grew into a nimble young girl of seven winters, a thoughtful girl with shining brown eyes and a wide grin …—
Louise Erdrich
Louise ErdrichI wanted to wipe the grin off his face [=make him stop smiling.]
Examples of grin in a Sentence
Verb
She continued to tease her brother, grinning wickedly.
grinned at the kids' fooling around in the pool
Recent Examples on the Web
Mariana Best, Better Homes & Gardens, 25 Oct. 2025
Irwin said, grinning ear-to-ear.
—Liza Esquibias, PEOPLE, 24 Oct. 2025
Simon Johnson, New York Times, 23 Oct. 2025
Brooks takes a gamble by letting the Monster be funny – seeing Peter Boyle mug the camera with a smarmy grin is as compelling as any serious approach to the Monster’s humanity.
—Rory Doherty, Vulture, 20 Oct. 2025
See All Example Sentences for grin
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Verb
The water-resistant design features a grinning bird in a pilgrim hat perched atop a giant pumpkin adorned with a festive greeting.
—Mariana Best, Better Homes & Gardens, 25 Oct. 2025
Irwin said, grinning ear-to-ear.
—Liza Esquibias, PEOPLE, 24 Oct. 2025
Noun
Judging by his big grin, though, the best topic was saved till last when asked to describe Estevao’s display.
—Simon Johnson, New York Times, 23 Oct. 2025
Brooks takes a gamble by letting the Monster be funny – seeing Peter Boyle mug the camera with a smarmy grin is as compelling as any serious approach to the Monster’s humanity.
—Rory Doherty, Vulture, 20 Oct. 2025
See All Example Sentences for grin
Cite this Entry
“Grin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/grin. Accessed 31 Oct. 2025.
Copy CitationKids Definition
grin
verb
grinned; grinning
: to draw back the lips so as to show the teeth especially in laughter
grin
noun
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